Development of the Silicon Steel Stamping Industry

The Relationship Between Silicon Steel Stamping and the Motor Manufacturing Industry

The stator and rotor of a motor are the core components that achieve various electromagnetic performances. These components are produced by stamping silicon steel sheets using high-precision molds and punching machines to create stator laminations and rotor laminations, which are then processed through stacking, aluminum casting, and other techniques. The primary material is silicon steel sheet, commonly known as silicon steel or electrical steel, which is a low-carbon silicon-iron soft magnetic alloy capable of effective energy exchange between electrical energy and magnetic energy. According to the production process, it can be divided into hot-rolled and cold-rolled types.

Therefore, the industry that produces motor stator, rotor laminations, and cores is called the silicon steel stamping industry. As the production sector for key motor components, the silicon steel stamping industry is directly related to the development status of the motor manufacturing industry.

Current Status of the Silicon Steel Stamping Industry

With the development of specialization in the motor industry, the motor components sector has also been subdivided into three main parts: stators, rotors, and other components. The silicon steel stamping industry, primarily engaged in the production of stator and rotor laminations and cores, has developed into a separate industry. The manufacturing of stator and rotor laminations is one of the critical processes in motor manufacturing, requiring the most significant workload and technical precision, especially regarding the molds used.

Motor Structure

From the perspective of motor structure, the stator and rotor are the core components that directly determine the performance and quality of a motor. The quality of materials, dimensions, geometric precision, burr handling, and stacking of stator and rotor laminations directly impact the motor's iron loss, temperature rise, power, and noise, thus affecting the electrical and mechanical performance as well as the manufacturing cost of the motor.

Composition of Motor Value

In terms of motor value composition, although there are many specifications and types of motors, their structures are largely similar, including:

• Stator component: frame, stator core, stator winding; Rotor component: rotor core, rotor winding;

  
  

• Other parts: end caps, bearing caps, bearings, terminal boxes, lifting rings, fan hood, and cooling fans.

As core components, the stator and rotor account for nearly 30% of the total value of motor components.

At Yixing Technology, we excel in high-precision custom metal stamping, with a particular focus on silicon steel stamping for demanding industrial applications. Leveraging advanced high-speed stamping equipment and expertly designed dies, we deliver components that meet strict dimensional tolerances and performance standards. Our expertise in handling silicon steel and galvanized steel ensures exceptional consistency, strength, and efficiency—making us a trusted partner for clients seeking reliable and tailored stamping solutions.